Acetylene-gas generator.



E. M. ROSBNBLUTH.

. AGETYLENE GAS GENERATOR.

APPLICATION FILvBD GOTA, 1909.

Patented Nov. 25, 1913.

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WITNESSES:

E. M. ROSBNBLUTH. AGETYLENB GAS GENERATOR.

APPLICATION rILED'ooT-4, 1909.

1,079,665. 1 Patented 11011.25, 1913.A

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E. M. ROSENBLUTH.

AGETYLENB GAS GENERATOR.

, APPLICATION FILED 00124. 1909'.

Patented Nov. 25, 1913.

3 SHEETS-SHEET 3.

IINITED STATES PATENT OFFICE.

EDWIN M. ROSENBLUTI-I, OF PHILADELPHIA, PENNSYLVANIA.

ACETYLENE-GAS GENERATOR.

To all whom t may concern.'

Be it known that I, EDWIN M. ROSEN- BLUTH, of Philadelphia, in thecounty of Philadelphia and State of Pennsylvania,

have invented a certain new and useful Ini provemen't in Acetylene-GasGenerators, whereof the following is a specification, reference beinghadv to the accompanying drawings.

As hereinafter described, my invention includes a generator having ajacket forming a Vacuum chamber surrounding its water receptacle andrendering the latter capable of maintaining water at the uniform`temperature best adapted for the pr-oduction of gas, regardless ofexposure of the generator to extremes of temperature.

Such an arrangement is advantageous in that it prevents freezing of thewater in winter weather and over-heating of the water when the generatoris eXpo-sedto torrid sunlight.

Although I have shown my invention embodied in a generator of the typedescribed in Letters Patent of the United States No. 903,507 granted tome November 10, 1908, it is to be luiderstood that my improvement may beapplied to generators of other types.

My invention includes the various novel features of construction andarrangement hereinafter more definitely specified.V

Certain of the features of construction herein set forth, including themeans connecting the base frame and water receptacle through the carbidcasing, and the detachable condensing coil carried by a foraminouscasing, are claimed in my copending application Serial No. 508,369,filed July 19, 1909 for Letters Patent of the United States 1,025,648dated May 7, 1912.

In said drawings Figure I, is a vertical sectional view of saidgenerato-r taken on the line I, I, in Fig. II. Fig. II, is a plan viewof said generator. Fig. III, is a plan view of the genera-tor base andcondenser. Fig. IV, is a fragmentary sectional view taken on the lineIV, IV, in Fig. II. Fig. V, is a fragmentary sectional view taken on theline V, -in Fig. I. Fig. VI, is

a fragmentary sectional lview taken o-n the line VI, in Fig. I. Fig.VII, is a fragmentary sectional view similar to Fig. VI, but showing thevalve in different position. Fig.

VIII, is a fragmentary sectional view taken on the line VIII in Fig. I,showing the air Specification of Letters Patent.

Application filed October 4, 1909.

tical stem 9 on said base frame 1. stem is screw threaded at its upperend for Patented Nov. 25, 1913.

serial No. 520,943.

valve in the position corresponding with Fig. V. Fig. IX, is afragmentaryv sectional view similar to-Fig; VIII but showing said airvalve in the position corresponding with Fig. VII. Fig. X, is a planView of a modified form of a generator base and condenser. Fig. XI, is afragmentary vertical sectional view of said base and condenser taken onthe line XI, XI, in Fig. X.

In said drawings, the base frame 1 is arranged to be permanentlyattached by screws 2 to any convenient supporting means 3, for instance,the running board of an automobile, and is arranged to support thecarbid casing 4 and water receptacle 5 in separable relation. Saidcarbid casing has the central tube 6 and the concentric annular flange 7in rigid relation with its bottom wall 8, and fitted to the central ver-Said engagement with the rotary connecting rod 11 which depends throughthe central tube 12 of the water receptacle 5, in concentric relationwith the annular flange 13 upon the top frame 14 of said receptacle. Theupper flange l5 of said casing 4, fits between the flanges 16 and 17carried by said water receptacle 5 and holding the gasket 18 betweenthem for engagement with said flange 15, and, the arrangement describedis such that when said carbid casing 4 is set upon the gasket 20 whichis attached to the base 1 by the flange 21, and, said water receptacle 5is fitted to said carbid casing and both separably connected with saidbase 1 by the engagement of said rod 11 andl stem 9, as

shown in Fig. I; the annular flanges 7, 18

\ and 15 are embedded in the respective gas kets 18, 20 and 22, and aclosed gas chamber 23 is formed between said casing and receptacle. rThegas which accumulates in said chamber to which it may rise by way of theinterstices between the carbid casing 4, the basket 38 and the dome 4I,or through the central tube 6 is normally discharged through the spacearound the rod 9 in the tube 6, apertures 24 and passageway 25 in thetubular lower end of said stem 9 to the liquid trap 26 in said base l,and thence through the branch 27 to the condensing coil 29 from whichthe gas is conveyed to the lamps, conveniently by a flexible tube. Saidbase 1 is provided .with the vertical tubular standard 32 extending inrigid connection therewith through said coil 29 and .support-4 ing thelatter, and, as indicated in Fig. I said standard is open at both endsto the atmosphere, being provided at its lower end with the air inlets33. The condensate 34 from the gas thus cooled in said coil 29 flowsinto Said trap 2G which has the opposite end Screw caps 35 and 36 sothat it may be readily emptied and cleaned. The passage 25 may also bereadily cleaned when the plug 37 is removed. As shown in Fig. I, saidcarbid casing 4 incloses the removable basket 38 having the foraminousbottom wall 39 supporting the carbid 40. The flange at the top of saidbasket 38, rests loosely upon the ledge of said casing 4 so as to permitthe passage of gas thereat. The dome 41 separably fitted in said basket38, supported at the height indicated by the brackets 42 in said basket,and held by its spring 43, serves to distribute circumferentially insaid basket, the water which drips thereon through the water outlet 44in the bott-oni of said water receptacle 5. Said water flowing down saiddome first reaches the carbid at `the lower edge of said domeVimmediately below the water port 44, and, being distributed in the spacebetween said dome and basket contacts with the carbid throughout thecircumference of the lower edge of the dome. The bead 46 formed in saiddome above its lower edge as shown in Fig. I, merely serves to stiffenthe same and is not essential to the aforesaid circumferentialdistribution of said water. As indicated said water outlet is restrictedby the loose reciprocatory plunger which rests upon said dome. Saidwater receptacle 5, has the jacket 47 maintained in spaced relationtherewith as indicated in Fig. I forming a vacuum chamber 48 surroundingsaid receptacle, said chamber being provided with the air vent tube 50sealed at its inner free end 51, through which the air is primarilyexhausted from said chamber 48. The passage of water 52 from saidreceptacle to said carbid casing is controlledby the rotary valve 53provided with said outlet 44 and carrying said plunger 45. Said valve ismounted in the casing 54 rigidly secured to the bottom wall 55 of saidreceptacle and having the ports 57 and 58 which when said valve isturned to the position shown in Figs. I, II, and VI register with theports 60 and 61 in said valve 53, permitting the passage of water fromsaid receptacle to the carbid casing. However, when said valve 53 isturned to the position shown in Fig. VII, said ports 57 and 58 in thevalve casing are closed to prevent the further discharge of water to thecarbid casing, and, contemporaneously the gas port 62 in said valveregisters with the gas port 63 in said valve casing 54 which opens intothe gas chamber 23 through the base of said casing and leads to thehollow stem 64, having the handle 65, by which said valve 53 is rotated.As shown in Fig. I, said stem G4 is open at its upper end to theatmosphere, so that when said valve 53 is turned to permit the water 52to drip into the carbid casing, the escape of gas through said valve 53and stem 64 is prevented, but when said valve 53 is turned to shutl offthe water, after generated gas is permitted to escape to the atmospherethrough said valve and stem. In order to permit the regulated How ofwater from said water receptacle 5 to the carbid casing when said valve53 is opened, as above described, it is necessary that the space 66 insaid receptacle above the water 52 shall be in communication with theatmosphere and therefore I provide the tube 67 which extends through theupper wall of said receptacle 5 vacuum chamber 48 and its jacket 47 andhas the airport G9 above the latter controlled by the annular valve 70which is carried by said handle 65 on said stem 64 in rigid relationwith said valve 53 at thc lower end thereof. Said air valve 70 has theport 71 which as shown in Fig. VIII registers with said port 69 whensaid valve 53 is in the position shown in Fig. VI, so that air isadmitted to said receptacle 5 when. the water 52 is permitted to driptherefrom, but when said valve 53 is turned to the position indicated inFigs. VII and IX, said air port 69 is closed by said valve 70.

The inlet by which the water is supplied to said receptacle includes thetube 72 which as shown in Fig. IV extends through the upper wall of thereceptacle 5, the vacuum chamber 48 and the jacket 47 in hermeticallysealed relation therewith and is provided with the tubular bearing 73through which the rod 74 may be reciprocated and rotated. Said rod 74 isrigidly connected with the cap or closure 75 having the gasket 7 (3fitted to the upper end of said tube 72, and the lower end of said rodis provided with :i spring 78 by which said closure is normally helddown in air tight relation with said tube. It is to be understood thatsaid closure may be lifted against the tension of said spring 7 8 andturned to the position indicated in dotted lines in Figs. II and IV,whenever it is desired to use said tube 72 as a water inlet or outlet-The advantage of said arrangement is that said closure cannot be lost ormislaid and when turned to register with said inlet tube 72,automatically seals it.

Although I find it convenient to mount the tubular standard 32 on saidbase 1, in eccentric relation with the stem 9, so that said base may bepermanently secured upon its support 3, in a position where said coil 29is protected from being crushed; a condensing coil may be supported upona tubular standard carried by the base frame in concentric relation withthe stem upon the latter, as in the form of my'invention shown in Figs.X and XI, wherein the base frame 81 is arranged to support the carbidcasing 84 and water receptacle 85 in separable relation and has thecentral stem 87, similar to the stem 9 above described, having theapertures 88 and the passageway 89 through which the gas is dischargedinto the liquid trap 90. Said trap 90 has the removable plug 91aifording access to said passage 89, and, the removable end cap 927permitting the discharge of the condensate. The gas is discharged fromsaid trap 90 through the branch 94 connected with the condensing coil95, supported by the tubular standard 96 extending vertically in rigidrelation with said base frame 81 and open to the atmosphere at the topand bottom. I find it convenient to provide said coil 95 with thefora-minous cover 98 which is removably supported by said tubularstandard 96, said cover'havng the opening 99 through which the upper endof said coil 95 projects, as indicated in Fig. X, for engagement with aflexible tube or other conduit leading to the lamps. As said condensingcoil 95 surrounds the carbid casing 84 and may be heated above theatmospheric temperature by the generation of gas in said casing, I findit convenient to provide said tubular standard 96 with a layer ofmaterial 100 which is a nonconductor of heat, for instance asbestosfabric, interposed between said coil and standard and held on the latterby the strips 101.

It may be observed that in both forms of my invention above described,the base frame is provided with a tubular stem by which the carbidcasing and water receptacle are separably retained in rigid relationtherewith, and the condensing coil is supported by said baseindependently of said carbid casing and water receptacle, with theadvantage that the flexible tube or other conduit through which the gasis discharged from said coil need not be disconnected or disturbed whenit is desired to remove or separate said carbid casing and waterreceptacle. Although said coils 29 and 95 are normally retained in rigidrelation with their respective base frames, they are detachablyconnected with the respective branches 27 and 94, by union fittings, asshown, so that said coils may be readily removed and replaced.

I do not desire to limit myself to the precise details of constructionand arrangement above described, as it is obvious that variousmodifications may be made therein without departing from the essentialfeatures of my invention as defined in the appended claims.

I claim l. In an acetylene gas generator,: the

combination with a water receptacle surrounded by a vacuum jacket,havingV a water inlet including a tube extending through said jacket andthe wall ofsaid water receptacle; of a removable closure for said tube;and, a spring pressed rod forming a pivot for said closure and normallyretaining the-same in closed position.

2. In an acetylene gas generator, the combination with a waterreceptacle surrounded by a vacuum jacket, having a water inlet includinga tube extending through said jacket and the wall of said waterreceptacle; of a removable closure for said tube; and, a spring normallyretaining` the same in closed position. v

3. In an acetylene gas generator, the combination with a base framearranged to be permanently secured to supporting means; of a stemextending upwardly from said base frame and having a threaded upper end;a carbid casing having a tube extending centrally through it andsurrounding said stem; a water receptacle detachably fitted upon saidcarbid casing and forming a gas chamber; a tube in said receptacleforming a central passageway therethrough; a connecting rod extendingthrough said passageway in engagement with said stem;

and, a jacket on said receptacle forming a vacuum chamber surroundingrthe same.

4. In an acetylene gas generator, the comycination with a carbidreceptacle; of a water receptacle detachably fitted upon said carbidreceptacle and Jforming a gas chamber; a base frame arranged to bepermanently secured to supporting means; a rod extending through saidwater receptacle and carbid casing in connection with said base frame;and, a condensing coil carried byY said base frame, independently ofsaid water receptacle and carbid casing but in communication with saidgas chamber.

5. Infan acetylene gas generator, the combination with a carbidreceptacle; of a water receptacle detachably fitted upon said carbidreceptacle and forming a gas chamber; a base frame arranged to bepermanently secured to a convenient supporting means; a rod extendingthrough said water receptacle and carbid casing in connection with saidbase frame; and, a condensing coil carried byl said base frame inconcentric relation with said rod, independently of said waterreceptacle and carbid casing but in coinmunication with said gaschamber.

6. In an acetylene gas generator, the combination with a base framearranged to be permanently secured to supporting means; of a carbidcasing having a tube extending through it; a water receptacle detachablyfitted upon said carbid casing and forming a gas chamber; a tube in saidreceptacle forming a central passageway therethrough; a connecting rodextending through said tubes in engagement with said base; and, a acketon said receptacle forming a vacuum chamber surrounding the same.

7. In an acetylene gas generator, the combination with a carbid casing;of a separa.- ble water receptacle; a jacket carried by said waterreceptacle forming a vacuum chamber surrounding the same; a base frame,and a connecting rod extending through said jacket, said waterreceptacle and carbid casing'in detachable connection with said baseframe.

8. In an acetylene gas generator, the combination with a carbidreceptacle and a detachable water receptacle; of a jacket for said waterreceptacle forming a vacuum chamber surrounding the same; and. an air,Vent tube extending into said water receptacle from said vacuum chamberand having its free end sealed.

9. In an acetylene gas generator, the combination with a carbidreceptacle and a water receptacle; of a jacket for said water receptacleforming a vacuum chamber surrounding the same; and, a sealed air ventfor said chamber in the wall of said water receptacle.

10. In an acetylene gas generator, the combination with a carbidreceptacle and a detachablewater receptacle; of a jacket for said waterreceptacle forming a vacuum chamber surrounding the same; an air portleading from said water receptacle to the atmosphere; and, a rotaryvalve controlling said air port, operatively connected with a valvecontrolling a water passageway lead.- ing from said water receptacleinto said car- Y bid casing and also controlling a gas passagewayleading from said carbid casing to the atmosphere through a hollow stemconnecting said valves.

11. In an yacetylene gas generator, the combination with a carbidcasing; of a water receptacleitted thereto in separable gas tightrelation, forming a gas chamber; a base frame; means detachablyconnecting said carbid casing and water receptacle with said base frame;and a condensing coil carried by said base frame independently of saidwater receptacle and carbid casing but in communication with said gaschamber; said base frame being provided with a. liquid trap between saidgas chamber and condensing coil and in communication therewith, andhaving a tubular standard extending vertically within said coil,supporting the latter and open to the atmosphere at the top and bottomof said coil.

12. In an acetylene gas generator, the combination with a carbid casing;of a water receptacle fitted thereto in separable gas tight relation,forming a gas chamber; a base frame; means detachably connecting Copiesof this patent may be obtained for said carbid casing and Waterreceptacle with said base frame; and a condensing coil carried by saidbase frame independently of said water receptacle and carbid casing butin communication with said gas chamber; said base frame having a tubularstandard extending vertically within said coil, supporting the latterand open to the atmosphere at the top and bottom of said coil.

13. In an acetylene gas generator, the combination with a carbid casing;of a water receptacle fitted thereto in separable gas tight relation,forming a gas chamber; a base frame; and means detachably connectingsaid carbid casing and water receptacle with said base frame, includinga central tubular stem on said base frame, forming a gas conduit.

14. In an acetylene gas generator, the combination with a carbid casing;of a water receptacle fitted thereto in separable gas tight relation,forming a gas chamber; a base frame; and means detachably connectingsaid carbid casing and water receptacle with said base frame, includinga tubular stem on said base frame, forming a gas conduit.

15. In an acetylene gas generator, the combination with a base framearranged to be permanently secured to supporting means; of a carbidcasing removably supported by said base frame; means detachablyconnecting said carbid casing with said base frame; a condensing coilcarried by said base frame, having its lower end in communication withthe bottom of said carbid casing.

16. In an acetylene gas generator, the combination with a carbidreceptacle and water receptacle; of a valve controlling the flow ofwater from said receptacle; means forming a vacuum chamber surroundingsaid water receptacle; means, extending through said vacuum chamber,whereby said valve may be operated; and a sealed air vent for saidchamber' so located as to be inaccessible from the exterior of saidchamber.

17. In an acetylene gas generator, the combination with a waterreceptacle; of a valve controlling the iiow of water from saidreceptacle; means forming a. vacuum chamber surrounding said receptacle;means extending through said vacuum chamber, whereby said valve may beoperated; and a sealed air vent for said chamber.

In testimony whereof I have hereunto signed my name at Philadelphia,Pennsylvania, this thirtieth day of September, 1909.

EDWIN M. ROSENBLU'IH.

IVitnesses:

ARTHUR E PAIGE, GERTRUDE N. R. MATTsoN.

five cents each, by addressing the Commissioner of Patents, Washington.D. C.

